CROSS-REFERENCE TO RELATED APPLICATIONS/INCORPORATION BY
REFERENCE
[0001] This patent application is related to and claims priority to:
U.S. patent application 13/326,125 filed December 14, 2011, which claims priority to U.S. provisional patent application serial number 61/487,979 filed May 19, 2011; and U.S. patent application 13/301,400 filed on November 21, 2011, which claims priority to U.S. provisional patent application serial number 61/487,979 filed May 19, 2011.
[0002] Each of the above stated applications is hereby incorporated herein by reference
in its entirety.
FIELD OF THE INVENTION
[0003] Certain embodiments of the invention relate to multimedia communication. More specifically,
certain embodiments of the invention relate to a method and system for a broadband
receiver for efficiently receiving and processing signals.
BACKGROUND OF THE INVENTION
[0004] Present broadband receivers, for example those utilized in satellite television systems,
are unnecessarily complex and utilize bandwidth inefficiently. Further limitations
and disadvantages of conventional and traditional approaches will become apparent
to one of skill in the art, through comparison of such systems with the present invention
as set forth in the remainder of the present application with reference to the drawings.
BRIEF SUMMARY OF THE INVENTION
[0005] Various aspects of the present invention provide a system and method in a broadband
receiver (
e.
g., a satellite television receiver) for efficiently receiving and processing signals,
substantially as shown in and/or described in connection with at least one of the
figures, as set forth more completely in the claims. These and other advantages, aspects
and novel features of the present invention, as well as details of illustrative aspects
thereof, will be more fully understood from the following description and drawings.
BRIEF DESCRIPTION OF SEVERAL VIEWS OF THE DRAWINGS
[0006] Figure 1 is a diagram illustrating a satellite television system.
[0007] Figure 2 is a diagram illustrating a satellite television system.
[0008] Figure 3 is a diagram illustrating a satellite television system.
[0009] Figure 4 is a diagram illustrating an exemplary communication system, in accordance
with various aspects of the present invention.
[0010] Figure 5 is a diagram illustrating an exemplary communication system comprising a
broadband receiver system, in accordance with various aspects of the present invention.
[0011] Figure 6 is a diagram illustrating an exemplary full-band capture receiver, in accordance
with various aspects of the present invention.
[0012] Figure 7 is a diagram illustrating an exemplary full-band capture receiver, in accordance
with various aspects of the present invention.
[0013] Figure 8 is a diagram illustrating an exemplary polyphase channelizer, in accordance
with various aspects of the present invention.
[0014] Figure 9 is a flow diagram illustrating an exemplary method for receiving a broadband
signal, in accordance with various aspects of the present invention.
[0015] Figure 10 is a diagram illustrating an exemplary satellite television wireless coupling,
in accordance with an embodiment of the invention.
[0016] Figure 11 is a block diagram illustrating exemplary steps in providing satellite
television service to a dwelling, in accordance with an embodiment of the invention
[0017] Figure 12 is a diagram illustrating exemplary wireless coupling through a dwelling
wall, in accordance with an embodiment of the invention.
DETAILED DESCRIPTION OF VARIOUS ASPECTS OF THE INVENTION
[0018] The following discussion will refer to various modules, components and/or circuits.
Such modules, components and/or circuits may generally comprise hardware and/or a
combination of hardware and software (
e.
g., including firmware). Such modules may also, for example, comprise a computer readable
medium (
e.
g., a non-transitory medium) comprising instructions (
e.
g., software instructions) that, when executed by a processor, cause the processor
to perform various functional aspects of the present invention. Accordingly, the scope
of various aspects of the present invention should not be limited by characteristics
of particular hardware and/or hardware/software implementations of a module, component
or circuit unless explicitly claimed as such. For example and without limitation,
various aspects of the present invention may be implemented by one or more processors
(
e.
g., a microprocessor, digital signal processor, baseband processor, microcontroller,
etc.) executing software instructions (
e.
g., stored in volatile and/or non-volatile memory). Also for example, various aspects
of the present invention may be implemented by an application-specific integrated
circuit ("ASIC") and/or other hardware components.
[0019] Additionally, the following discussion will refer to various functional modules (
e.
g., communication modules, signal processing modules, etc.). It should be noted that
the following discussion of such various modules is segmented into such modules for
the sake of illustrative clarity. However, in actual implementation, the boundaries
between various modules may be blurred. For example, any or all of the functional
modules discussed herein may share various hardware and/or software components. For
example, any or all of the functional modules discussed herein may be implemented
wholly or in-part by a shared processor executing software instructions. Additionally,
various software sub-modules that may be executed by one or more processors may be
shared between various software modules. Accordingly, the scope of various aspects
of the present invention should not be limited by arbitrary boundaries between various
hardware and/or software components, unless explicitly claimed.
[0020] The following discussion may also refer to communication networks and various aspects
thereof. For the following discussion, a communication network is generally the communication
infrastructure through which a device (
e.
g., a portable communication device, television, television control device, television
provider, television programming provider, television receiver, video recording device,
set top box, network controller, satellite dish circuitry, etc.) may communicate with
other devices. For example and without limitation, a communication network may comprise
a cable and/or satellite television communication network, a cellular communication
network, a wireless metropolitan area network (WMAN), a wireless local area network
(WLAN), a wireless personal area network (WPAN), any home or premises communication
network (
e.
g., an in-home coaxial cable television communication network), etc. A particular communication
network may, for example, generally have a corresponding communication protocol according
to which a communication device may communicate with the communication network. Unless
so claimed, the scope of various aspects of the present invention should not be limited
by characteristics of a particular type of communication network.
[0021] Turning first to Figure 1, such figure is a diagram illustrating a satellite television
system 100. The exemplary system 100 comprises a premises 108 (
e.
g., a home, building, office, etc.). External to the premises 108 is a satellite dish
system 105, comprising a satellite dish 106, feed horn 107, and low noise block downconverter
(LNB) 110, which will be discussed in more detail below. The satellite dish system
105 outputs one or more IF analog signals and communicates such signals into the premises
108 over one or more cables 120 (
e.
g., coaxial cables) to an in-home device 130 (
e.
g., a satellite set top box, an in-home multiswitch, etc.). The in-home device 130
may be connected to an in-home communication network 140.
[0022] Turning next to Figure 2, such figure is a diagram illustrating an exemplary satellite
television system 200. The exemplary system 200 may, for example, comprise a low noise
block downconverter (LNB) 210 (
e.
g., as illustrated at item 110 in Figure 1), which generally operates to amplify a
received RF satellite signal and convert such signal to lower frequencies (
e.
g., intermediate frequencies (or IF)). The LNB 210 is typically collocated with a satellite
dish at a satellite dish system (
e.
g., as illustrated at the satellite dish system 105 of Figure 1). For example, the
LNB 210 may be mounted to the satellite dish, share a same general structure with
the satellite dish, etc.
[0023] Such a system 200 may, for example, be implemented in a manner that receives a plurality
of bands. Such implementation may, for example, arise when a satellite dish is receiving
signals from multiple orbital slots. In such a configuration, the LNB 210 may output
a plurality of IF signals over a plurality of respective cables 220
(e.g., coaxial cables). Each of such a plurality of IF signals may, for example, cover a
broadband frequency range (
e.
g., from 950MHz to 2150 MHz).
[0024] Such a plurality of cables 220 may, for example, terminate (
e.
g., in the home or other customer premises (CP)) at a network multi-switch 230. The
multi-switch 230 may, for example, reside in the customer premises (
e.
g., in a customer home). Such a multi-switch 230 (
e.
g., individually and/or combined with a receiver) is an example of the in-home device
130 of Figure 1. The multi-switch 230 may, for example, direct particular IF signals
to one or more respective receivers. For illustrative clarity, the system 200 is only
shown with a single in-home set top box (STB) 235 receiving a signal from the multi-switch
230. The in-home set top box 235 may then select channels from the IF signal(s), where
such channels have for example been specified by the provider (and/or customer), and
combine such selected channels in an output for communication on a home network 240.
[0025] The exemplary system 200 of Figure 2 suffers from having a plurality of cables 220
coupling the LNB 210, which is generally outside a premises (
e.
g., outside a customer home) with satellite receiver circuitry located inside a premises.
[0026] Turning next to Figure 3, such figure is a diagram illustrating a satellite television
system 300. The exemplary system 300 may, for example, comprise a low noise block
downconverter (LNB) 310 (
e.
g., as illustrated at item 110 in Figure 1), which generally operates to amplify a
received RF satellite signal and convert such signal to lower frequencies (
e.
g., intermediate frequencies (or IF)). The LNB 310 is typically collocated with a satellite
dish at a satellite dish system (
e.
g., as illustrated at the satellite dish system 105 of Figure 1).
[0027] Such a system 300 may, for example, be implemented in a manner that receives a plurality
of bands. Such implementation may, for example, arise when a satellite dish is receiving
signals from multiple orbital slots. In such a configuration, the LNB 310 may output
a plurality of IF signals. In comparison with the system 200 illustrated in Figure
2, which communicates the plurality of IF signals over a plurality of respective cables
220, the system 300 of Figure 3 comprises a single wire module (SWM) 315, communicatively
coupled to the LNB 310, that processes the plurality of IF signals from the LNB 310
(
e.
g., frequency shifting or "channel-stacking" such IF signals) to combine the IF signals
(
e.
g., selected portions thereof) onto a single cable (
e.
g., a coaxial cable). Such SWM 315 may, for example, comprise a channel stacking switch
to perform such functionality. In such a configuration, the SWM 315 may output the
stacked IF signals over a cable 320 (
e.g., a coaxial cable).
[0028] Such a cable 320 may, for example, terminate (
e.
g., in the home or other customer premises (CP)) at a set top box (STB) 330. The STB
330 may, for example, reside in the customer premises (
e.
g., in a customer home). Such a set top box 330 is an example of the in-home device
130 of Figure 1. The STB 330 may then, for example, communicate selected channels
over a home network 340 to various other devices (
e.
g., television devices, media content storage devices, personal computing devices,
etc.).
[0029] Though the exemplary system 300 of Figure 3 eliminates the multiple IF cables of
the system 200 of Figure 2, such system 300 suffers from having the SWM 315, which
is a relatively expensive component that consumes a relatively large amount of power.
[0030] Turning next to Figure 4, such figure is a diagram illustrating a satellite television
system 400. The exemplary system 400 may, for example, comprise a low noise block
downconverter (LNB) 410, which generally operates to amplify a received RF satellite
signal and convert such signal to lower frequencies (
e.
g., intermediate frequencies (or IF)). The LNB 410 is typically collocated with a satellite
dish at a satellite dish system (
e.
g., as illustrated at the satellite dish system 105 of Figure 1).
[0031] Such a system 400 may, for example, be implemented in a manner that receives a plurality
of bands. Such implementation may, for example, arise when a satellite dish is receiving
signals from multiple orbital slots. In such a configuration, the LNB 410 may generate
and/or output a plurality of IF signals. In comparison with the system 200 illustrated
in Figure 2 which communicates the plurality of IF signals over a plurality of respective
cables 220, the system 400 of Figure 4 comprises a broadband multichannel receiver
(BMR) 415 that processes the plurality of IF signals received from the LNB 410 and
outputs a digital signal (
e.
g., a digital Internet Protocol (IP) signal) that communicates selected channels (
e.
g., over a single cable 420, over multiple cables 420 numbering less than the number
of IF signals from the LNB 410, etc.). The discussion of Figure 5 below, and subsequent
figures, will include detailed discussion of the BMR 415 (which, when combined with
the LNB 410, may also be referred to herein as an IP-LNB 410/415). The BMR 415 may,
for example, be housed with the LNB 410 in a same housing, implemented on a same circuit
board as the LNB 410, implemented on a same semiconductor substrate as the LNB 410,
implementing on a system-on-a-chip (SoC) with the LNB 410, etc. Additionally, in comparison
with the system 300 illustrated in Figure 3, which utilizes a relatively expensive
and power-hungry SWM 315, the exemplary system 400 of Figure 4 replaces such SWM 315
with a relatively low-cost and energy efficient BMR 415.
[0032] As mentioned above, the BMR 415 may output a digital IP signal. The exemplary system
400 comprises a cable 420 (
e.
g., a coaxial cable) over which the digital IP signal output from the BMR 415 is communicated
to an in-home IP network 440 (or in-premises IP network). Such an in-home IP network
440 may comprise various characteristics, non-limiting examples of which will now
be presented. The network 440 may, for example, be a cable-based (
e.
g., a television coaxial cable-based) network. Such an implementation may, for example,
utilize an existing in-home cable television network for the communication of IP signals.
For example, such a cable-based network 440 may be operated in accordance with a Multimedia
over Coax Alliance (MoCA) protocol (
e.
g., MoCA 1.0, MoCA 1.1, MoCA 2.0, etc.). Also for example, such a cable-based network
440 may be operated in accordance with an ITU G.hn standard (or portion therof), a
HomePNA standard (or portion thereof), etc. In an additional example, the network
440 may be operated in accordance with an Ethernet standard (
e.
g., gigabit Ethernet), a wireless standard (
e.
g., 802.11 abgn, 802.11ac, etc.), etc. Note that in various implementations, the BMR
415 may communicate with such In-home IP Network 440 via a wireless link.
[0033] The in-home IP network 440 may, for example, communicatively couple any of a variety
of devices, each of which may in turn be communicatively coupled to the IP-LNB 410/415.
Such devices may, for example, reside in the user's home.
[0034] By way of example and not limitation, the system 400 may comprise an IP set top box
(IP-STB) 450 that resides in the home and is communicatively coupled to the in-home
IP network 440. Such an IP-STB 450 may, for example, communicate directly with the
IP-LNB 410/415 (or the BMR 415) outside the home. Also for example, the system 400
may comprise a television 455 (
e.
g., an IP-capable television) that resides in the home and is communicatively coupled
to the in-home IP network 440. Such a television 455 may, for example, communicate
directly with the IP-LNB 410/415 (or the BMR 415) outside the home.
[0035] Additionally for example, the system 400 may comprise a networked attached storage
(NAS) 475 that resides in the home and is communicatively coupled to the in-home IP
network 440. Such a NAS 475 may, for example, communicate directly with the IP-LNB
410/415 (or the BMR 415) outside the home. Note that in various implementations, such
a NAS 475 (or another NAS) may reside off-premises (
e.
g., at a location remote from the home), and in such case be communicatively coupled
to the IP-LNB 410/415 (or the BMR 415) via the in-home network 440 and one or more
other communication networks (
e.
g., the Internet).
[0036] Also for example, the system 400 may comprise a personal computer 480 that is located
in the home and is communicatively coupled to the in-home IP network 440 (
e.
g., directly, via cable modem, via wireless modem, etc.). Such personal computer 480
may, for example, communicate directly with the IP-LNB 410/415 (or the BMR 415) outside
the home. Additionally for example, the system 400 may comprise a printer 495 (or
other computer peripheral device) that resides in the home and is communicatively
coupled to the in-home IP network 440. Such a printer 495 may, for example, communicate
directly with the IP-LNB 410/415 (or the BMR 415) outside the home (
e.
g., for the communication of printable information and/or scanned information that
may be communicated via satellite, like program guide information, advertisement information,
etc.).
[0037] Further for example, the system 400 may comprise a wireless access point 465 (
e.
g., a wireless router, for example an access point operating in accordance with, for
example, any of the 802.11 standards, the Bluetooth standard, a WiMAX standard, a
cellular standard, etc.) that is located in the home and is communicatively coupled
to the in-home IP network 440 (
e.
g., directly, via cable modem, etc.). Such wireless access point 465 may, for example,
communicate directly with the IP-LNB 410/415 (or the BMR 415) outside the home. For
example, such wireless access point 465 may operate to provide a wireless communication
link between the in-home network 440 and a wireless device 467 (
e.
g., a mobile phone, mobile computing device, wireless game controller, personal digital
assistant, smart phone, etc.).
[0038] Also for example, the system 400 may comprise a camera 470 (
e.
g., a still and/or moving image camera) that resides in the home and is communicatively
coupled to the in-home IP network 440. Such a camera 470 may, for example, communicate
directly with the IP-LNB 410/415 (or the BMR 415) outside the home (
e.
g., for the communication of still and/or moving image information that may be communicated
via satellite).
[0039] Still further for example, the system 400 may comprise any general IP-Networked Device
460 (
e.
g., an IP-enabled gaming device, a climate control system, a home security system,
or any other IP-enabled device). Such IP-Networked Device may, for example, operate
to communicate information with the IP-LNB 410/415 (or the BMR 415) via the in-home
IP network 440.
[0040] The exemplary system 400 is presented to provide non-limiting exemplary characteristics
of an in-home network comprising an IP-LNB 410/415 in accordance with various aspects
of the present invention. Accordingly, the scope of various aspects of the present
invention should not be limited by any of such exemplary characteristics unless explicitly
claimed.
[0041] Turning next to Figure 5, such figure is a diagram illustrating an exemplary communication
system 500 comprising a broadband receiver system, in accordance with various aspects
of the present invention. Such system 500 may, for example and without limitation,
share any or all aspects with the IP-LNB 410/415 discussed previously with regard
to the exemplary system 400 illustrated in Figure 4.
[0042] The exemplary communication system 500 comprises an LNB 510. As discussed previously,
such an LNB 510 generally receives RF satellite signals at a satellite dish, and filters
and amplifies such signals to generate corresponding IF signals, which are then provided
to downstream entities. The LNB 510 may, for example and without limitation, share
any and all aspects with the LNBs 110, 210, 310 and 410 illustrated in Figures 1-4
and discussed previously. The LNB 510 is illustrated outputting M (an integer number)
of IF signals, labeled s
1 to s
M. Each of such IF signals may, for example, comprise IF signals in the 950MHz to 2150MHz
range, each of which corresponding to a respective satellite signal (
e.
g., a satellite television signal).
[0043] The exemplary system 500 also comprises a broadband multichannel receiver (BMR) 515.
Such BMR 515 may, for example and without limitation, share any or all aspects with
the BMR 415 discussed previously with regard to the exemplary system 400 illustrated
in Figure 4. Such BMR 515 may, for example, be operable to (
e.
g., including operate to and/or operate when enabled to) process the plurality of IF
signals s
1-s
M received from the LNB 510 and output a digital signal (
e.
g., one or more digital Internet Protocol (IP) signals) that communicates desired channels.
For example, a non-limiting exemplary implementation of the BMR 515 is illustrated
in Figure 5, and comprises a variety of modules, for example a Full-Band Capture Receiver
bank 540, Digital Channelizer 550, N x Demodulator bank 560, IP Bridge 570, and Communication
Interface Module 580 (
e.
g., an IP communication interface module comprising a MAC and PHY layer for IP networking).
Such modules may, for example, be implemented in hardware or a combination of hardware
and software.
[0044] For example, the BMR 515 may comprise a Full-Band Capture Receiver bank 540 (
e.
g., comprising M full-band capture receivers, FBCR
1-FBCR
M. Each of such full-band capture receivers may, for example, digitize the entire IF
signal contained on a respective input IF signal from the LNB 510. In an exemplary
satellite implementation, each of such full-band capture receivers may, for example,
digitize the entire 950MHz to 2150MHz range of satellite-related content (
e.
g., media content) on the respective input signal. For example, FBCR
1 may receive analog IF signal s
1 from the LNB 510 and digitize the entire IF content of the input signal s
1 to generate output signal d
1. In such a manner, the full-band capture receiver bank 540 may receive M analog IF
signals s
1-s
M from the LNB 510 and output corresponding digital signals d
1-d
M. Non-limiting examples of full-band capture receivers will be presented below in
Figures 6-7 and the respective discussions thereof.
[0045] Note that although the full-band capture receiver bank 540 is shown and discussed
as receiving the M analog IF signals s
1-s
M from the LNB 510, such signals may be received from a plurality of different sources
(
e.
g., from one or more satellite television sources, from one or more cable television
sources, from one or more terrestrial broadcast television sources, etc.). Such full-band
capture receiver(s) may, for example, operate to capture the complete, or substantially
complete, spectral band for a particular communication protocol, standard or proprietary
(
e.
g., for a satellite television communication protocol). Also, such full-band capture
receiver(s) may, for example, operate to capture the complete, or substantially complete,
respective spectral bands for a plurality of respective communication protocols, standard
or proprietary (
e.
g., for a satellite television communication protocol and/or a cable television communication
protocol and/or a terrestrial television communication protocol, etc.).
[0046] Note that, depending on the IF bandwidth utilization and/or depending on desired
channels, one or more of the plurality of FBCRs of the FBCR bank 540 may be powered
down. For example, if a particular FBCR corresponds to a satellite signal that is
not presently providing a desired channel, such particular FBCR may be powered down
(
e.
g., until a need for a channel corresponding to the particular FBCR arises). Alternatively,
a non-utilized FBCR may also be re-tasked to process another signal (
e.
g., a signal corresponding to another orbital slot, a signal corresponding to a different
signal source, for example, a different satellite and/or terrestrial broadcast source,
etc.). Additionally, an FBCR may also reduce its capture bandwidth if the desired
channels fall within a limited portion of the full band.
[0047] Note that the FBCR bank 540 is an exemplary implementation. The implementation of
block 540 may alternatively comprise multiple single-channel tuners, followed by an
analog to digital converter.
[0048] The BMR 515 may also comprise a Digital Channelizer (DCC) 550. The DCC 550 may, for
example, operate to receive the digitized signals d
1-d
M output from the FBCR bank 540. The DCC 550 may then, for example, process such received
digitized signals d
1-d
M (
e.
g., decimating and filtering such signals) to select desired channels from the set
of channels available in the digitized signals d
1-d
M. As such, the DCC 550 may, for example, serve as a crossbar for selecting an arbitrary
set of desired channels from among the channels available from one or more broadband
sources.
[0049] The DCC 550 may perform such processing in any of a variety of manners. For example
and without limitation, the DCC 550 may utilize a polyphase filter or a block that
calculates a running FFT of the received digitized signals d
1-d
M and selects a decimated output from each FFT for further processing. The DCC 550
may, for example, perform switching and routing operations after performing the above-mentioned
FFT/filtering operations, which may, for example, beneficially reduce the speed at
which the switching and routing operations need be performed. A non-limiting example
of a polyphase channelizer circuit is shown in Figure 8.
[0050] The further processed output may then, for example, be output on one or more output
lines c
1 (
e.
g., output on M output lines, each of which corresponding to one of the M input signals;
multiplexed onto a single output line; multiplexed onto more than one and less than
M output lines, etc.).
[0051] The DCC 550 may, for example, receive channel-selection information from upstream
(
e.
g., via a path from the satellite) and/or from downstream (
e.
g., from an in-home device), such channel-selection information being indicative of
such desired channels. For example, the channel selection process may be controlled
by the operator, by the customer, by both the operator and the customer, etc.
[0052] The BMR 515 may additionally comprise an N x Demodulator bank (NDB) 560. Such NDB
560 may, for example, operate to receive the output signal(s) c
1 from the DCC 550 and recover the digital information modulated on such received signal(s).
The output c
1 of the DCC 550 (which may comprise one or more digital signals output on one or more
output lines) may, for example, comprise one or more transport streams, including
for example, media transport streams like MPEG, general data transport streams, etc.
[0053] The BMR 515 may further comprise an IP Bridge (BIP) 570 (or other protocol bridge(s)).
Such BIP 570 may, for example, operate to receive the output signal(s) c
2 from the NDB 560 (
e.
g., including transport streams and/or other information) and encapsulate such digital
information in IP packets. Such encapsulation may, for example, comprise forming the
input digital information into IP packets for downstream communication.
[0054] The BIP 570 may also, for example, operate to filter the digital information received
from the NDB 560. Such filtering may, for example, comprise various types of data
filtering. For example, the BIP 570 may operate to perform packet identification (PID)
filtering to select only desired portions of the input data for encapsulation. Such
filtering may, for example, beneficially reduce the amount of IP-encapsulated data
that is sent downstream from the IP-LNB 505 to the customer premises (
e.
g., only desired packets are communicated on the in-home IP network). Such filtering
may, for example, be controlled by the operator (via control signal(s) received via
a satellite channel) and/or by the user (via control signal(s) received from in-home
user apparatus).
[0055] The BIP 570 may then output the IP-encapsulated data on one or more output signals
c
3. The BMR 515 may also comprise a communication interface module 580. Such a communication
interface module 580 may operate to interface with a communication network (
e.
g., an in-home communication network). The previous discussion of Figure 4 presented
many non-limiting examples of such an in-home communication. For example and without
limitation, the communication interface module 580 may comprise a module that interfaces
with an IP network (
e.
g., operating to perform network layer operation, transport layer operation, MAC layer
operation, and/or PHY layer operation compatible with the desired network). In such
example, the communication interface module 580 may operate to interface with the
IP network by transmitting and/or receiving signals s
IP compatible with the IP network.
[0056] For example, as discussed above with regard to Figure 4, the IP-LNB 410/415 (and,
for example, the IP-LNB 505 of Figure 5) may operate to communicate with an in-home
communication network. Such an in-home communication network 440 may comprise various
characteristics, non-limiting examples of which will now be presented. The network
440 may, for example, be a cable-based (
e.
g., a television coaxial cable-based) network. Such an implementation may, for example,
utilize an existing in-home cable television network for the communication of IP signals.
For example, such a cable-based network 440 may be operated in accordance with a Multimedia
over Cable Alliance (MoCA) protocol (
e.
g., MoCA 1.0, MoCA 1.1, MoCA 2.0, etc.). Also for example, such a cable-based network
440 may be operated in accordance with an ITU G.hn standard (or a portion thereof),
a HomePNA standard (or a portion thereof), etc. In an additional example, the network
440 may be operated in accordance with an Ethernet standard (
e.
g., gigabit Ethernet), a wireless standard (
e.
g., 802.11 abgn, 802.11ac, etc.), etc. The network 440 may also, for example, operate
in accordance with a protocol that includes aspects of a point-to-point communication
protocol, a mesh communication protocol, a tree-structure communication protocol,
etc. The communication interface module 515 of the BMR 515 will, for example, operate
in the manner appropriate for conducting communication in accordance with the appropriate
network architecture and/or protocol.
[0057] Note that although the communication interface module 580 is shown and discussed
interfacing with a single communication network (
e.
g., a single in-home IP network), the communication interface module 580 may operate
to communicate with a plurality of different types of communication networks (
e.
g., simultaneously, pseudo-simultaneously in a timeshare manner, one at a time, etc.).
Many examples of such different types of networks were presented above.
[0058] The exemplary system 500 is presented to provide non-limiting exemplary characteristics
of an IP-LNB 505 in accordance with various aspects of the present invention. Accordingly,
the scope of various aspects of the present invention should not be limited by any
of such exemplary characteristics unless explicitly claimed. For example, the previous
discussion of the exemplary communication system 500 focuses on a satellite dish system
IP-LNB utilization of the exemplary communication system 500. The previously-discussed
aspects also generally apply to non-satellite communication systems, and accordingly,
the scope of various aspects of the present invention should not be limited by characteristics
of satellite communication systems unless explicitly claimed.
[0059] As discussed above, Figures 6 and 7 provide non-limiting examples of the full-band
capture receivers FBCR
1-FBCR
M discussed above. Turning to Figure 6, such figure is a diagram illustrating an exemplary
full-band capture receiver (FBCR) 600, in accordance with various aspects of the present
invention.
[0060] The exemplary FBCR 600, for example, comprises a variable gain amplifier 610 that
receives an IF signal s
i (
e.
g., from an LNB). The output of the variable gain amplifier 610 is then provided to
a plurality of wideband fixed-frequency receivers RX
1-RX
L, each of which is tuned to receive signals in a respective portion of the full-band
of the input IF signal s
i. The digitized outputs of such receivers RX
1-RX
L are then combined to yield a digital output d
i. For example, a first wideband fixed-frequency receiver RX
1 620 may comprise an amplifier, mixer, filter and analog-to-digital filter, which
are used to process the input IF signal s
i in a first portion of the IF frequency band. Similarly, a second wideband fixed-frequency
receiver RX
2 630 may comprise an amplifier, mixer, filter and analog-to-digital filter, which
are used to process the input IF signal s
i in a second portion of the IF frequency band. Similarly, an L
th wideband fixed-frequency receiver RX
L 640 may comprise an amplifier, mixer, filter and analog-to-digital filter, which
are used to process the input IF signal s
i in an L
th portion of the IF frequency band. Various aspects of an exemplary FBCR 600 are presented
in
U.S. Provisional Patent Application No. 61/427,088, filed Dec. 23, 2010, and titled "METHOD AND APPARATUS FOR BROADBAND DATA CONVERSION", which is hereby
incorporated herein by reference in its entirety.
[0061] Figure 7 is a diagram illustrating an exemplary full-band capture receiver (FBCR)
700, in accordance with various aspects of the present invention. The exemplary FBCR
700, for example, comprises a variable gain amplifier 710 that receives an IF signal
s
i (
e.
g., from an LNB). The output of the variable gain amplifier 710 is then provided to
a filter 720, which may, for example, be utilized for anti-aliasing and equalization.
The filter 720 outputs a filtered signal, which is then received by a wideband analog-to-digital
converter 730, which in turn is capable of digitizing the filtered IF signal over
the entire relevant bandwidth. The A/D converter 730 then outputs a digital output
d
i.
[0062] Turning next to Figure 8, as discussed above, Figure 8 provides a non-limiting example
of a digital polyphase channelizer (DCC) 800. Such a digital polyphase channelizer
800 may, for example, be utilized in the DCC 550 of Figure 5 to perform the channelization
operation.
[0063] The exemplary a polyphase channelizer 800 may, for example, comprise a plurality
of filters 820 (h
o-h
M-1) serving as a polyphase partition, the inputs to which are controlled by a switching
device 810. The outputs of the filters 820 are input to an M-point FFT engine 830,
where the outputs of the FFT engine 830 are then selected by switch 840 for output.
Such switch 840 may, for example operate to multiplex the outputs from the FFT engine
830 on a single output line.
[0064] Turning next to Figure 9, such figure is a flow diagram illustrating an exemplary
method 900 for receiving a broadband signal, in accordance with various aspects of
the present invention. The exemplary method 900 may share any or all functional aspects
with the systems illustrated in Figures 1-8 and discussed previously.
[0065] The exemplary method 900 (
e.
g., the entire method 900 and/or any portion thereof) may be performed by one or more
components of a satellite dish system (
e.
g., by components generally collocated with a satellite dish, for example outside the
home). As a non-limiting example, any or all functional aspects of the exemplary method
900 may be performed by a broadband multichannel receiver (BMR) that may for example
be communicatively coupled to an upstream LNB and a downstream premises-based IP network
(
e.
g., an in-home cable network).
[0066] The exemplary method 900 starts execution at step 905. The exemplary method 900 may
begin executing in response to any of a variety of causes and/or conditions. For example
and without limitation, the method 900 may begin executing in response to resetting
and/or powering up a satellite dish system (
e.
g., circuitry generally collocated with a satellite dish). Also for example, the method
900 may begin executing in response to a signal received from an external device (
e.
g., an in-home consumer electronic device) indicating that the one or more channels
are desired. Further for example, the method 900 may begin executing in response to
a signal received from an external device indicating a change in a desired set of
channels (
e.
g., for in-home consumption of media and/or general data associated with such channels).
In general, the exemplary method 900 may begin executing at step 905. Accordingly,
the scope of various aspects of the present invention should not be limited by characteristics
of any particular initiating cause and/or condition unless explicitly claimed.
[0067] The exemplary method 900 may, at step 910, comprise downconverting one or more received
satellite signals (and/or signal received from other sources, like cable sources,
terrestrial television broadcast signal, etc.). Step 910 may, for example and without
limitation, share any or all downconverting characteristics discussed previously (
e.
g., with regard to various LNBs 110, 210, 310, 410, and 510 discussed herein). For
example, step 910 may comprise receiving one or more RF satellite signals at a satellite
dish, amplifying such received signals, and converting such signals to one or more
IF signals. Note that the received and converted signals need not necessarily be RF
satellite signals. In general, step 910 may comprise downconverting one or more received
signals. Accordingly, the scope of various aspects of the present invention should
not be limited by characteristics of any particular downconversion functionality unless
explicitly claimed.
[0068] The exemplary method 900 may, at step 920, comprise converting one or more IF signals
(
e.
g., IF satellite signals) to digital data. Step 920 may, for example and without limitation,
share any or all functional aspects with various components of the broadband multichannel
receiver (BMR) 515 illustrated in Figure 5 and discussed previously (
e.
g., Full-Band Capture Receiver bank 540, Digital Channelizer 550, and N x Demodulator
bank 560). For example and without limitation, step 920 may comprise processing a
plurality of IF signals (
e.
g., resulting from step 910) and output a digital signal (
e.
g., one or more digital Internet Protocol (IP) signals) that communicates desired channels.
In general, step 920 may comprise converting one or more IF signals to digital data.
Accordingly, the scope of various aspects of the present invention should not be limited
by characteristics of any particular type of signal conversion and/or any particular
manner of performing such signal conversion unless explicitly claimed.
[0069] The exemplary method 900 may, at step 930, comprise encapsulating digital data in
protocol packets (
e.
g., IP packets). Step 930 may, for example and without limitation, share any or all
functional aspects with various components of the broadband multichannel receiver
(BMR) 515 illustrated in Figure 5 and discussed previously (
e.
g., BIP 570). For example and without limitation, step 930 may comprise receiving one
or more digital signals communicating digital data (
e.
g., resulting from step 920), encapsulating such received data in protocol packets
(
e.
g., IP packets) and outputting one or more digital signals communicating such protocol
packets. In general, step 930 may comprise encapsulating digital data in protocol
packets. Accordingly, the scope of various aspects of the present invention should
not be limited by characteristics of any particular type of packet and/or any particular
manner of forming received data into such packets unless explicitly claimed.
[0070] The exemplary method 900 may, at step 940, comprise communicating protocol packets
(
e.
g., IP packets). Step 940 may, for example and without limitation, share any or all
functional aspects with various components of the broadband multichannel receiver
(BMR) 515 illustrated in Figure 5 and discussed previously (
e.
g., communication interface module 580). For example and without limitation, step 940
may comprise receiving one or more digital signals communicating protocol-encapsulated
data (
e.
g., IP-encapsulated data and/or other protocol-encapsulated data resulting from step
930) and communicating such packets over a communication network. Many non-limiting
examples of such networks (
e.
g., in-home cable networks, premises-based wired and/or wireless networks, etc.) are
presented above. In general, step 940 may comprise communicating protocol packets.
Accordingly, the scope of various aspects of the present invention should not be limited
by characteristics of any particular type of packet and/or any particular manner of
communicating such packets unless explicitly claimed.
[0071] Figure 10 is a diagram illustrating an exemplary satellite television wireless coupling,
in accordance with an embodiment of the invention. Referring to FIG. 10, there is
shown a dwelling 1001 (e.g., a home, office, single-dwelling unit, multi-dwelling
unit, any of a variety of types of premises, etc.), a satellite dish system 1003,
and a wireless coupler 1005A. The dwelling 1001 may comprise a wireless coupler 1005B,
a MoCA/set-top box 1007, HDTVs 1009A and 1009B, access points 1011A and 1011B, and
a personal computer 1013.
[0072] The MoCA/set-top box 1007 may operate under the MoCA 1.x or 2.x specification, for
example, and may communicate signals between other MoCA network devices in a ∼1-2
GHz frequency range when operating with a cable TV signal or ∼ 400-900 MHz when operating
with a satellite TV signal. Other communication protocols may be utilized by the MoCA/set-top
box 1007, including one or more wireless protocols, such as one or more 802.11x protocols.
The MoCA/set-top box 1007 may comprise a network controller in the wired network in
the dwelling 1001, coordinating the wired network communications as per the MoCA standard.
[0073] The access points 1011A and 1011B may be operable to provide wireless network access
to devices within the dwelling 1001. Exemplary wireless networks may comprise wireless
local area networks (WLANs) that conform to an IEEE 802.11 (e.g., a, b, g, n, and/or
ac) protocol, femtocells, Bluetooth, ZigBee networks, or any other non-public networks.
The access points 1011A and 1011B may be coupled to the MoCA/set-top box 1007 via
a wired connection, such as a coaxial cable or an Ethernet cable, for example. In
another exemplary scenario, the MoCA/set-top box 1007 may comprise native wireless
network capability, without the need for the access point 1011B to be coupled to it.
[0074] The satellite dish system 1003 may, for example and without limitation, share any
and all aspects with the satellite dish system 105 and associated LNBs 110, 210, 310,
410, and 505 illustrated in Figures 1-5 and discussed previously. Accordingly, the
satellite dish system 1003 may be operable to provide an IP signal into the dwelling
1001 via a wireless interface. FIG. 10 shows various exemplary embodiments. For example,
the wireless couplers 1005A and 1005B may be affixed to the outside and inside, respectively,
of the dwelling 1001 so that a hole does not have to be drilled in the roof or walls
of the dwelling 1001. Drilling a hole through the exterior of a dwelling may be unsettling
to the homeowner, potentially dangerous to the installer and the structure (e.g.,
the installer could fall, drill into wiring, damage and expose copper electrical service
lines to cause a fire, drill into plumbing, etc.), and typically requires the homeowner
to be home during the install. By utilizing a wireless coupling, a service provider
may set up the satellite dish system 1000 and sync up with a box, such as the MoCA/set-top
box 1007, potentially without having to enter the dwelling 1001.
[0075] To minimize the power transmitted, the wireless interfaces 1005A and 1005B may be
aligned in close proximity on either side of a wall or roof of the dwelling by a visible
or audible indicator such as an LED or buzzer, respectively, which indicates the proximity
of wireless interfaces 1005A to 1005B by lighting up or sounding, respectively. Proximity
of 1005A and 1005B may be estimated by, for example, measuring the signal strength
transmitted by one to the other, or the bit error rate, or independently by means
of a magnetic sensor.
[0076] By terminating the analog satellite signal at the satellite dish system 1003, the
wireless transmission into the home from the dish may have its own encryption. For
example, the encryption may be in accordance with a particular standard being utilized,
such as IEEE 802.11n, and may also provide additional security benefits inherent in
MIMO or may take advantage of the beam-forming of the standard.
[0077] In such a configuration, directional antennas may be utilized to reduce power, reduce
noise and interference from other sources, protect the signal from unauthorized listeners,
etc. Furthermore, beam-forming (e.g., in accordance with IEEE 802.11n) may also enhance
security and/or channel quality and directional frequencies (higher frequencies) may
be utilized to enhance security. For example, the wireless signal utilized to communicate
the satellite signal into the dwelling 1001 may be beam-formed or otherwise directed
at a particular receiver inside the dwelling (e.g., with a primary RF signal lobe
directed at the particular receiver that is just strong enough to meet communication
requirements, and with minimized side lobes to reduce interference (caused and/or
experienced) and to reduce susceptibility to hacking).
[0078] In another exemplary scenario utilizing WLAN technology, the wireless couplers 1005A
and 1005B may be located at short distances apart and/or configured with directionality,
such that another completely separate WLAN may be set up within the home for typical
home use. For example, the wireless coupler 1005A may communicate over a short-range
wireless link with the wireless coupler 1005B, which may in turn communicate wirelessly
over a standard WLAN via the access point 1011A, or from the wireless coupler 1005B
itself. Alternatively, if the existing in-home wireless network has sufficient bandwidth,
both the wireless link between the wireless couplers 1005A and 1005B and the WLAN
provided by the access points 1011A and 1011 B may comprise a shared wireless network
supporting all the wireless devices in the dwelling 1001.
[0079] In another exemplary scenario, the wireless coupler 1005A may be located on the roof
of the dwelling 1001 near the satellite dish system 1003 and the wireless coupler
1005B may be located at a long distance from the satellite dish system 1003. For example,
in a multi-dwelling unit, the wireless coupler 1005A may communicate wireless IP signals
to a plurality of remote wireless couplers in units within the dwelling 1001, thereby
providing satellite service to multiple subscribers without the need to add multiple
cables, and their associated holes into the dwelling.
[0080] The wireless couplers 1005A and 1005B may operate under an existing wireless standard,
such as 802.11x or low-power WiMAX, for example, or may utilize a custom wireless
protocol. The wireless couplers 1005A and 1005B may comprise transceivers compliant
with one or more standards such as an ITU G.hn standard (or a portion thereof), a
HomePNA standard (or a portion thereof), etc. In an additional example, the transceivers
may be operable to communicate in accordance with an Ethernet standard (e.g., gigabit
Ethernet), an Ethernet Passive Optical Network, a Gigabit Passive Optical Network,
a wireless standard (e.g., 802.11abgn, 802.11ac, etc.), etc, and may be connected
to a bridge to a wireless standard for transmission between 1005A and 1005B. This
may comprise a single chip or a multi-chip solution.
[0081] In instances where a custom wireless link is used, the link could be very simple
and in an unused frequency range, such as in the industrial, scientific, and medical
(ISM) bands; or a band at millimeter-wave frequencies such as 57-64GHz where low power
transmissions are allowed below a certain level; or white-space frequencies in channels
2-51 as allowed by FCC. A point-to-point link may be minimally complex, for example,
disposing of many mechanisms that are unnecessary for simple point-to-point links
such as multiple-access mechanisms, interference mechanisms, etc.
[0082] In instances where a standard wireless protocol is utilized, to save cost etc., a
general-purpose transceiver need not be utilized. For example, general-purpose functionality,
such as reverse compatibility mechanisms, various prioritization mechanisms, and relatively
high-power components, etc., may be eliminated from a general-purpose WiFi transceiver
to make it less costly. Since a primary function of the wireless couplers may be point-to-point
communication, and in situations where wireless couplers 1005A and 1005B are in very
close proximity and alignment, the MAC layer processing may be substantially simplified
to reduce memory, packet processing and other functions that might otherwise increase
the cost of the chip.
[0083] In an exemplary scenario, where the wireless couplers 1005A and 1005B are in close
proximity at the roof or an outer wall of the dwelling 1001, magnetic coupling may
be utilized to communicate the IP signals from the satellite dish system 1003. This
close proximity may enable secure communications since the magnetic coupling requires
an intercepting entity to essentially be within the path of the magnetic coupling
field lines, which would be highly unlikely in this instance. In such an exemplary
scenario, the digital IP signal may be converted to an analog signal via a digital-to-analog
converter (DAC) in the wireless coupler 1005A prior to being communicated via magnetic
coupling to the wireless coupler 1005B. In yet another exemplary scenario, a microwave
signal may be utilized to couple IP signals from the satellite dish system 1003 in
to the dwelling 1001.
[0084] In another exemplary scenario, wireless signals may be communicated from the satellite
dish system 1003 via the wireless couplers 1005A and 1005B and to the access points
1011A and 1011B, such that the entire path from the LNB in the satellite dish system
1003 to nodes in the dwelling 1001 may be wireless. Furthermore, since the channel
is asymmetric, because of the one-way communication of a home-satellite dish system,
the upstream/downstream bandwidth (e.g., duplexing) may be tuned. In instances where
the wireless network operates under a wireless standard, it may be utilized in an
asynchronous manner (e.g., manage such utilization at a higher layer than MAC). In
contrast, if a custom network protocol is utilized, asymmetric operation may be designed
into the protocol.
[0085] In yet another exemplary scenario, the wireless coupler 1005B may communicate electrical
signals into power lines in the dwelling 1001. In this manner, the IP signal generated
by the satellite dish system 1003 may be communicated to the entire dwelling 1001
over existing wires without requiring additional infrastructure.
[0086] FIG. 11 is a block diagram illustrating exemplary steps in providing satellite television
service to a dwelling, in accordance with an embodiment of the invention. The exemplary
method illustrated in Figure 11 may, for example, share any or all functional aspects
discussed previously with regard to Figures 1-10. Referring to FIG. 11, after start
step 1101, in step 1103, satellite signals may be received by the satellite dish system
1003.
[0087] In step 1105, the received signals may be converted to IP by the IP-LNB 505 (or,
for example, to another digital format). Step 1105 may, for example and without limitation,
share any or all functional aspects discussed previously (e.g., with regard to FIGS.
1-10).
[0088] In step 1107, the IP signals may be communicated into the dwelling 1001 via the wireless
couplers 1005A and 1005B, and subsequently communicated to other devices in the dwelling
1001 either wirelessly or via existing cables or wiring in the dwelling 1001, followed
by end step 1111 (or, for example, loops back to step 1103 for continued reception
of satellite signals).
[0089] FIG. 12 is a diagram illustrating exemplary wireless coupling through a dwelling
wall, in accordance with an embodiment of the invention. Referring to FIG. 12, there
is shown a wire 1201 from an IP-LNB, wireline transceiver 1202, a wireless connectivity/bridge
module 1203, a dwelling wall 1204, a wireless connectivity/bridge module 1205, a wireline
transceiver 1206, and a wire 1207. The wireline transceiver 1202 and wireless connectivity/bridge
module 1203 may comprise a single integrated circuit (chip) or may be on two or more
chips. Similarly, the wireline transceiver 1206 and wireless connectivity/bridge module
1205 may comprise a single integrated circuit (chip) or may be on two or more chips.
[0090] The wireline transceivers 1202 and 1206 may be compliant with one or more standards
such as an ITU G.hn standard (or a portion thereof), a HomePNA standard (or a portion
thereof), etc. In an additional example, the transceivers may be operable to communicate
in accordance with an Ethernet standard (e.g., gigabit Ethernet), an Ethernet Passive
Optical Network, a Gigabit Passive Optical Network (GPON), etc.
[0091] The wireless connectivity/bridge modules 1203 and 1203 may be operable to bridge
from the above described wired standards to a wireless standard (e.g., 802.11abgn,
802.11ac, etc.), thereby providing wireless communication from a plurality of different
standards into a dwelling and then back into the same, or alternatively bridged to
another wired communication standard. For example, the wireline transceiver 1202 may
receive GPON signals via the wire 1201. The wireless connectivity bridge module 1203
may bridge the MPON signals to 802.11ac signals, communicate them wirelessly through
the dwelling wall 1204 to the wireless connectivity/bridge 1205, which may bridge
the 802.11ac signals to MoCA signals that may then be communicated over the wire 1207
via the wireline transceiver 1206 to networked devices, such as a set-top box, for
example.
[0092] In summary, various aspects of the present invention provide a system and method
in a broadband receiver (e.g., a satellite television receiver) for efficiently receiving
and processing signals. While the invention has been described with reference to certain
aspects and embodiments, it will be understood by those skilled in the art that various
changes may be made and equivalents may be substituted without departing from the
scope of the invention. In addition, many modifications may be made to adapt a particular
situation or material to the teachings of the invention without departing from its
scope. Therefore, it is intended that the invention not be limited to the particular
embodiment disclosed, but that the invention will include all embodiments falling
within the scope of the appended claims.
The invention pertains also to the following:
In one aspect the invention provides a satellite dish system for receiving satellite
signals, said satellite dish system comprising:
a low noise block downconverter (LNB) operable to, at least, downconvert a received
satellite signal to an IF signal; and
at least one module communicatively coupled to said LNB and generally collocated with
said LNB, where said at least one module is operable to, at least:
receive the IF signal from said LNB;
convert at least a portion of the received IF signal to digital data;
encapsulate at least a portion of the digital data in IP packets; and communicate
the IP packets to a device external to the satellite dish system.
In one embodiment, said at least one module comprises one or more full-band capture
receivers operable to, at least:
receive one or more IF signals from said LNB; and
digitize the one or more IF signals received from said LNB over all frequencies of
the one or more IF signals received from said LNB that are used for communicating
satellite television signals.
In one embodiment, said at least one module comprises a digital channelizer communicatively
coupled to the one or more full-band capture receivers and operable to, at least:
receive one or more digitized signals from said one or more full-band capture receivers,
the received one or more digitized signals corresponding to the one or more IF signals
received and digitized by said one or more full-band capture receivers and comprising
a plurality of channels;
select a portion of the plurality of channels; and
output one or more digital signals comprising the selected portion of the plurality
of channels.
In one embodiment, said digital channelizer comprises a polyphase filter and is operable
to utilize said polyphase filter to select the portion of the plurality of channels.
In one embodiment, said digital channelizer comprises an FFT engine and is operable
to select a portion of the plurality of channels by, at least in part, utilizing said
FFT engine to calculate a running FFT of the received one or more digitized signals
received from said one or more full-band capture receivers, and selecting outputs
of said FFT engine for further processing.
In one embodiment, said one or more full-band capture receivers comprise a first full
band capture receiver and a second full band capture receiver that capture substantially
identical frequency bands.
In one embodiment, said at least one module comprises one or more demodulators communicatively
coupled to said digital channelizer and operable to, at least:
receive the output one or more digital signals from said digital channelizer;
convert the output one or more digital signals received from said digital channelizer
to one or more transport streams; and
output the one or more transport streams.
In one embodiment, said at least one module comprises an IP bridge operable to encapsulate
at least a portion of the digital data in IP packets.
In one embodiment, said at least one module comprises an IP bridge communicatively
coupled to said one or more demodulators and operable to encapsulate at least a portion
of the one or more transport streams in IP packets.
In one embodiment, said IP bridge is operable to perform packet identification (PID)
filtering to select only a portion of the digital data to encapsulate in IP packets.
In one embodiment, said at least one module comprises a communication interface module
operable to communicate the IP packets to a device external to the satellite dish
system.
In one embodiment, said communication interface module is operable to communicate
the IP packets to the device external to the satellite dish system utilizing a communication
protocol specifically adapted for communication with in-home devices over a television
cable medium.
In one embodiment, the device external to the satellite dish system is one of: an
in-the-home device, a home gateway, a network controller of an in-the-home communication
network, and a general purpose data communication device that is not specifically
adapted for satellite communication.
In one embodiment, said at least one module comprises a full-band capture receiver
operable to, at least:
receive the IF signal from said LNB; and
digitize respective signal components of a plurality of respective frequency bands,
each of the plurality of respective frequency bands corresponding to a different respective
communication protocol.
In one embodiment, said IP packets are communicated wirelessly to said device external
to the satellite system.
In one embodiment, said at least one module comprises:
a first full-band capture receiver operable to, at least:
receive a first IF signal from said LNB; and
digitize the received first IF signal over all frequencies of the first IF
signal that are used for communicating satellite television signals; and
a second full-band capture receiver operable to, at least:
receive a second IF signal from said LNB; and
digitize the received second IF signal over all frequencies of the second IF signal
that are used for communicating satellite television signals.
In one embodiment, said at least one module comprises a digital channelizer communicatively
coupled to said first and second full-band capture receivers and operable to, at least:
receive a first digitized signal from said first full-band capture receiver, the received
first digitized signal corresponding to the first IF signal received and digitized
by said first full-band capture receiver and comprising a first plurality of channels;
receive a second digitized signal from said second full-band capture receiver, the
received second digitized signal corresponding to the second IF signal received and
digitized by said second full-band capture receiver and comprising a second plurality
of channels;
select a portion of the first and second pluralities of channels; and output one or
more digital signals comprising the selected portion of the first and second pluralities
of channels.
In one embodiment, said one or more digital signals comprising the selected portion
of the first and second pluralities of channels is a single digital signal comprising
the selected portion of the first and second pluralities of channels.
In one embodiment, said at least one module comprises a plurality of demodulators
communicatively coupled to said digital channelizer and operable to, at least
receive the output one or more digital signals from said digital channelizer; convert
the output one or more digital signals received from said digital channelizer to one
or more transports streams; and output the one or more transport streams.
In one embodiment, said at least one module comprises an IP bridge communicatively
coupled to said plurality of demodulators and operable to encapsulate at least a portion
of the one or more transport streams in IP packets.
In one embodiment, the device external to the satellite dish system is an in-the-home
device.
In one embodiment, the device external to the satellite dish system is different from
a set top box.
In one embodiment, the device external to the satellite dish system is a network controller
of an in-the-home communication network.
In one embodiment, the device external to the satellite dish system is a general purpose
data communication device that is not specifically adapted for satellite communication.
In one aspect the invention provides a circuit for use in a satellite dish system
having a low noise block downconverter (LNB) that downconverts a received satellite
signal to an IF signal, said circuit comprising:
at least one module operable to, at least:
receive an IF signal from a generally collocated LNB;
convert at least a portion of the received IF signal to digital data;
encapsulate at least a portion of the digital data in IP packets; and communicate
the IP packets to a device external to the satellite dish system.
In one aspect the invention provides a satellite television system comprising:
one or more circuits in a satellite television system, said one or more circuits being
operable to, at least:
receive satellite television signals utilizing a satellite dish corresponding to a
premises;
convert one or more of said received satellite signals at the satellite dish to one
or more internet protocol (IP) signals; and
wirelessly communicate said one or more IP signals from the satellite dish into the
premises.
In one aspect the invention provides a method for receiving and processing satellite
signals, the method comprising:
in a satellite television system:
receiving satellite television signals utilizing a satellite dish corresponding to
a premises;
converting one or more of said received satellite signals at the satellite dish to
one or more internet protocol (IP) signals; and
wirelessly communicating said one or more IP signals from the satellite dish into
the premises.